Define Mexican Rat Meaning

Mexican Rat
a very small dog which originated from mexico. its original name is the chihuahua.

dude 1: yo you saw that taco bell commercial yet?
dude 2: you mean that add with the annoying mexican rat that talks?
dude 1: yea, lol, funny is'nt it?
dude 2: no, no its not
By Gilberta
Dirty Mexican Rat
What you call a cartel member whos name rhymes with retardo shiller.

Faggarin: Look at that frimmin rat
Brown syndrome: You mexican SCUM
Retardo: Shut up I ain't no Dirty Mexican Rat
By Adele